著作: [平野 朋広]/Furutani Takahiro/[押村 美幸]/[右手 浩一]/Syndiotactic- and Heterotactic-Specific Radical Polymerizations of N-n-Propyl-α-fluoroacrylamide and Phase-Transition Behaviors of Aqueous Solutions of Poly(N-n-propyl-α-fluoroacrylamide)/[Journal of Polymer Science Part A: Polymer Chemistry]
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種別 | 必須 | 学術論文(審査論文) | |||
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言語 | 必須 | 英語 | |||
招待 | 推奨 | ||||
審査 | 推奨 | ||||
カテゴリ | 推奨 | ||||
共著種別 | 推奨 | ||||
学究種別 | 推奨 | ||||
組織 | 推奨 |
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著者 | 必須 | ||||
題名 | 必須 |
(英) Syndiotactic- and Heterotactic-Specific Radical Polymerizations of N-n-Propyl-α-fluoroacrylamide and Phase-Transition Behaviors of Aqueous Solutions of Poly(N-n-propyl-α-fluoroacrylamide) |
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副題 | 任意 | ||||
要約 | 任意 |
(英) Radical polymerization of N-n-propyl-α-fluoroacrylamide (NNPFAAm) was investigated in several solvents at low temperatures in the presence or absence of Lewis bases, Lewis acids, alkyl alcohols, silyl alcohols, or fluorinated alcohols. Different effects of solvents and additives on stereospecificity were observed in the radical polymerizations of NNPFAAm and its hydrocarbon analogs such as N-isopropylacrylamide (NIPAAm) and N-n-propylacrylamide (NNPAAm); for instance, syndiotactic (and heterotactic) specificities were induced in radical polymerization of NNPFAAm in polar solvents (and in toluene in the presence of alkyl and silyl alcohols), whereas isotactic (and syndiotactic) specificities were induced in radical polymerizations of the hydrocarbon analogs under the corresponding conditions. In contrast, heterotactic specificity induced by fluorinated alcohols was further enhanced in radical polymerization of NNPFAAm. The effects of stereoregularity on the phase-transition behaviors of aqueous solutions of poly(NNPFAAm) were also investigated. Different tendencies in stereoregularity were observed in aqueous solutions of poly(NNPFAAm)s from those in solutions of the hydrocarbon analogs such as poly(NIPAAm) and poly (NNPAAm). (日) N-n-プロピル-α-フルオロアクリルアミドのラジカル重合を極性溶媒中低温で行うと,シンジオタクチックポリマーが得られること,フッ素化アルコール存在下トルエン中低温で行うとヘテロタクチックポリマーが得られることを見出した.また,立体規則性がポリマー水溶液の相転移に影響を及ぼすことも見出した. |
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キーワード | 推奨 | ||||
発行所 | 推奨 | ||||
誌名 | 必須 |
Journal of Polymer Science Part A: Polymer Chemistry([John Wiley & Sons, Inc.])
(pISSN: 0887-624X, eISSN: 1099-0518)
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巻 | 必須 | 50 | |||
号 | 必須 | 12 | |||
頁 | 必須 | 2471 2483 | |||
都市 | 任意 | ||||
年月日 | 必須 | 2012年 6月 15日 | |||
URL | 任意 | ||||
DOI | 任意 | 10.1002/pola.26024 (→Scopusで検索) | |||
PMID | 任意 | ||||
CRID | 任意 | ||||
WOS | 任意 | 000303758200018 | |||
Scopus | 任意 | ||||
評価値 | 任意 | ||||
被引用数 | 任意 | ||||
指導教員 | 推奨 | ||||
備考 | 任意 |